{
  "manageEntity": {
    "action": "Repost",
    "entityId": "21900",
    "entityType": "Track",
    "metadata": "{\"is_repost_of_repost\":false}",
    "nonce": "0x59cd710a20abc7f11413728c7d829d76fa158d43214dc7d25a8011d0a78a451d",
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    "signer": "0xAd15470171ba4f01ad3C714600D9A7E9aE62485C",
    "userId": "714646433"
  }
}